bearens



C. BEARENS.

RESlLIENT DRIVE MEANS.

APPLICATION FILED APR. 30, I920.

- Patented Nov. 30, 1920.

2 SHEETS-SHEET 1 INVENTOR E v wmvsss 5 7 62/1005 BMB %M W ATTORNEYS C. BEARENS. RESILIENT DRIVE MEANS;

APPLICATION FILED APR-30, I920- Patented Nov. 30, 1920.

h Q N WITNESSES INVENTOR g 64/11/05 fifflEf/YS I drive meansin the and2;

meansshown in Fig. 5:;

'- tions, said shafts having each.

' a drive. element with made non-circular.

'15 of the general. f

UNITED STATES PATENT OFFICE.

CLAUDE IBE ARENS, OF NEW YORK, N. Y.

RESILIENT DRIVE MEANS.

Application-filed April 30,

To all whom it may concern Be it known that I, CLAUDE Binmnivs, a citizen of the United States, and a resident of the city of New York, borough of Man: hattan, in the county and State of New York, have invented a new and Improved Resilient Drive Means, of which the following is a description, ,1 1 V a My invention relates to means to connect a driven element as for example a drive shaft with a driven shaft, the invention being intended to have special advantage when interposed in the transmission means of a motor-driven vehicle.

The general object of the invention is to provide a resilient drive connection possessing distinctive features and advantages as will appear from the specific descriptionfollowing. Referenceis to be had to the accompanymg drawings forming apart of this specification, it being understood that the drawings are merely .illustrative of two examples of the invention.

Figure 1 is a side elevation of drive means embodying. 'myinventiong, Fig. 2 is a longitudinal section thereof,

' Fig. 3 isa cross section on the'line 3-3,

Figzlfl. l

Fig. is an end viewofzone of twocorresponding elements forminglfpart ofcthe form shown in .Figs. 1

Fig. 5 is a sidetelevation'ofadrive means embodyingmy lnvention inanother form; vFig. 6 is a longitudinal Fig. 7 is an end. view of one of the aliningLInembers V forming. part of .the, drive means in the form shown in F igs.'15 and .6; F ig. 8 is a cross-section on the line 8'-8,

ri e.

Referring more particularly to Figs. llto 4., the numeral110 indicates a portion of a drive element, and 11 indicates a portion of a driven element, here shown as shaft secan axial recessor blind bor'es12 and 13, respectively, the walls 'of which are square or otherwise F itting slidably in the bore 12 is the reduced end 141 of an element ormof a shaft section, a corresponding reduced end 145 ofan element. 15 fitting the recess 13 of the driven shaft 11." By reason of the non-circular Specification of Letters Patent.

"ment 15 and said driven shaft.

section ofthe drive 22 'are coiled about Patented Nov. 30, 1920. 1920. Serial No. 377,948.

cross section of the ends 14, 14 and their recesses 12, 13, a turning movement of drive shaft 10 will be imparted to the element 15 and a turning movement imparted to the element l5 will in turn be imparted to the 15 and the opposite end of said spring and the corresponding endof the adjacent; spring 16 aresuitably secured asby a pin 18 to a disk 19 disposed between the said springs. The smaller end of the spring 16" is secured to the adjacent end of the element 15*.

By the described construction a turning of the drive shaft 10 will impart a corresponding turning movement to the element 15 which inturn will stress the spring 16. As the tension of the spring 16 increases a turning movement will be imparted to the disk 19 which will stress the spring 16 until the resistance of the shaft 11 is overcome, whereupon the spring 16 will turnthe ele- Thus, the driven shaft 11 will be started without shock.- The described connection between the elements 15, 15 and the drive and driven shafts permits of a relative sliding movement to compensate for the lengthening or shortening. of the springs 16, 16 when stressed or relaxed. V

In the preferred forms of my invention I provide means to maintain the elements 15, 15 in alinement. In the form shown in Figs. 1 to 3, said alining means consists of ascrew shaft'section 20 "to which the disk 19 is threaded, said shaft engaging at its ends with threadedaxial bores 21, 22 in the opposed-ends of the elements 15, 15. 1 Thus,

as said elements 15, 15 are turned relatively to the springs 16, 16 a longitudinal movement of the elements 15, 15" relatively to the alining shaft section 20 is permitted due to the threaded engagement therebetween.

In order to provide additional cushioning means in the drive connection, springs 22,

the alining shaft section 20 at opposite sides ofthe disk 19 and abut respectively against said disk and against the endsof the elements 15, 15.

Additional compression springs 23 may be shaft 10 and driven shaft 11 7 has a reduced end 14c fitting an axial recess larger ends cured as at 18 respectively to disks 19219 the respec; V

coiled compression spring within the sleeve 20 between the ends 01' thrning of dish a corresponding threadhas a reduced end 14 fitting the non circular recess 13 of shaiit A sleeve 20 having a threaded bore 20 receives and has threaded engagement with the opposed ends of the shaft sections 15 15 and helical torsion springs 16, 16 are disposed at the ends of. the sleeve 20,

12- in shaft and ed shaft section the smaller ends' 01 said springs being sewhile the cured as at 17 'to said sleeve, V

of said springs are suitably sesections adjacent to driven shaits 10,'1=1*. A

on the shaft tive drive and the shaftsections 15 15 for cushioning relative longitudinal movement 7 thereof. Also, compression springs- 22" are provided, coiled respectively about the shaft sections 15 ,.15, within the springs 16", 16, and abutting respectively against the disks 19 and thee'nds oi the sleeve 20?. The respec tive disks 19, 19 are made fast in any suitablemanner to the elements on which they are mounted as for example through the medium of a key and keyway as indicated at 24, Fig. 2, and 24, Fig.- 6.- Thcreby,tlie 19 turns the shaftsection 20 and by reason of the threaded -engagement of said shaft section with the elements 15, 15*, the latter are moved longitudinally relatively to the shafts 1'0, 11. Similarly, th'e'turning of the disks 19 turns the/shaft sections 15 15, causing the latter to move toward or from each other in the sleeve 20 and relatively to the shafts 10 ,11; Makingthe elements 19, 19 indi'sk'form is advantageous in'afi'ording a firm seat for the adjacent ends of the torsion springs (16, 16 162-16) and in their capacity as a connection between the-torsion springs and the ele ment 20 or shaft sections 15', 15, eachdisk constitutes an. arm connecting the spring with the element (:20, 15, 15) on which the disk is mounted.

By forming a threaded connection between the section 20 and the elements 15, 15" and also employing threads on the elements 15 15 and 20 there is less liability of play between the parts while insuring the necesf sary relative longitudinal movement of the parts to compensate for the lengthening and. shortening oi the torsion springs.

- I would state in conclusion that while the illustrated example constitutes a practical.

i embodiment of my invention, I donot limit section 15* I myself strictly to the mechanical details herein illustraterlfsince manifestly the same can be considerably-varied without departure from the spirit of the invention as defined in the appended claims. I

Having thus described my invention, 1 claim:. i

1. A resilientdrive means adapted to be interposed between a drive and a driven element and including an element having i means to connect the same with the drive 23 is disposed element to be turned by the latter and to have longitudinal the drive element, a coil spring, means connecting said spring at one end with said third-mentioned element, turnableme'ans to which the opposite end or said spring is conne'cted, a second spring connected atone end I with said turna'ble means,

transmission element connected with the opp'osite end of the second spring.

2. A resilient drive means adapted to be interposed element and including an element having means to connect the same with the drive element to be turned thereby and to have longitudinal movement relatively thereto, a

torsion spring connected at one end with said third-mentioned element, a revoluble element with which the other end of said torsion spring is connected, a second torsion spring connecting with "one end of said revoluble element, 7

. ing' and turnable means 7 interposed which the opposite end of said second-mentioned torsion spring is connected, said last mentioned element having means to connect the same with the drivenelement to turn the latter and to have longitudinal move- -"m'ent relatively thereto.

3. A resilient drive means adapted to be interposedbetween a drive anda driven element to connect the same, said means includtransmission elements respectively adaptedto 'slidably and non-turnably engage the, drive and driven elements, torsion s rings disposed between saidtra'nsmission e 'em'ents, one end of eachtspring being con--' nected with onev end or the latter elements,

forming a connection between said springssaid turnab'le means being connected with both of said transmission elements to have turning and" longitudinal movements relatively thereto.

movement relatively to and a driven between a drive and a driven and an element with 4. A resilient drive means adaptedto be d between a drive and a driven ele- -ment to "connect the'same, said means including transmission elements respectively adapted to slidably and 'non-turnably' engage the drive and driven elements; torsion springs disposed between said transmission element's, one end of each springbein'g connected with one end of the latter elements,

and turnable means forming.- a connection one end done of said springs with one between said springs, said turnable means having a threaded connection with both of said transmission elements,rmeans connecting one end of the other spring with the other of said transmission elements, and means to connect the opposite ends of said springs with that element having threaded connection with the transmission elements.

6. A resilient drive means adapted to be interposed between a drive and a driven element to connect the same and including transmission elements respectively adapted to slidably and non-turnably engage the drive and driven elements, a revoluble element having threaded engagement with both of said transmission elements to form a connection therebetween and aline the same, a pair of torsion springs, means connecting of said transmission elements, means connecting one 'end'oi' the other spring with the other of said transmission elements, and means to connect the opposite 'ends of said together with spring springs with that element having threaded connection with the transmission elements; means to cushion the longitudinal movement of said transmission elements.

7. A resilient drive means adapted to be interposed between a drive and a driven element to connect the same, and including transmission elements respectively adapted to slidably and non-turnably engage the drive and driven elements, torsion springs interposed between said transmission elements, a threaded element having enga ement respectively at its opposite ends with said transmission elements, and means connecting said threaded element with the ends of said springs opposite the first-mentioned ends. I

8. A resilient drive means adapted to be interposed between a drive and a driven element to connect the same, said means including externally threaded transmission elements respectively adapted to slidably and non-turnably engage the drive and driven elements, a sleeve having internal threads and engaged at its respective ends by the threads of said transmission elements, and torsion springs at the ends of said internally threaded element and connected at their adjacent ends thereto, the opposite ends of said springs having connection respectively with the respectlve transmission elements.

CLAUDE BEARENS. 

